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BE1003572A5
(fr)
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Detecteur de grains perdus pour moissonneuses.
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US4607186A
(en)
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Ultrasonic transducer with a piezoelectric element
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FR2529427A1
(fr)
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Transducteur electro-acoustique a grande elongation
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US5955824A
(en)
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Reduced size electro-acoustic transducer with improved terminal
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US4456849A
(en)
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Piezoelectric ultrasonic transducer with damped suspension
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US4458170A
(en)
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Ultrasonic transmitter-receiver
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BE538293A
(OSRAM)
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WO2000013392A9
(en)
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Piezoelectric vibrational and acoustic alert device
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KR20030071626A
(ko)
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초음파 탐촉자 시스템
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US4151378A
(en)
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Electrostatic microphone with damping to improve omnidirectionality, flatten frequency response, reduce wind noise
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FR2466903A1
(fr)
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Transducteur piezoelectrique reglable pour montre
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FR2521382A2
(fr)
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Transducteur acoustique
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US8179024B2
(en)
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Piezoelectric transducer device
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JP2008241542A
(ja)
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球面弾性表面波センサ
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US3550071A
(en)
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Transducer system
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FI74183B
(fi)
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Piezoelektrisk omvandlare.
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JP7351792B2
(ja)
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収音装置
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US1356156A
(en)
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Telephonic receiver
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EP1734787B1
(fr)
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Haut-parleur inertiel sans membrane
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RU2228578C1
(ru)
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Электроакустический преобразователь
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FR2565727A1
(fr)
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Installation electronique de signal-avertisseur notamment pour vehicules automobiles.
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US2806913A
(en)
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Sound pressure receiver
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US1377521A
(en)
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Serge otjlianine |
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BE438308A
(OSRAM)
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BE408767A
(OSRAM)
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